They met as boys and were as close as brothers. But Luo Zhengyang developed feelings for Tan Taotao that he could only describe as love. Tan Taotao didn't know how to respond to his best friend's feelings or his own, so he ran away. After many twists and turns, they finally got together, only to part because of a misunderstanding. When they met again, being together was no longer possible: Tan Taotao was an undercover agent sent by Country A, and Luo Zhengyang was his cold-blooded instructor. They kept drawing close, only to miss each other time and again. With the apocalypse upon them, how will they get along? Will they end up together?
